ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is caring for a client prescribed montelukast. Which of the following should the nurse include in teaching related to this medication?
- A. Advise the client to take the medication once daily at bedtime
- B. This medication is for the acute management of asthma
- C. Avoid dairy products while taking this medication
- D. If the client forgets to take the medication for a few days, he should not double up on doses to catch up
Correct answer: A
Rationale: The correct answer is to advise the client to take montelukast once daily at bedtime to maintain therapeutic effects. Choice B is incorrect because montelukast is not typically used for acute asthma management but for chronic treatment. Choice C is incorrect as there are no known interactions between montelukast and dairy products. Choice D is incorrect as it is not safe to double up on doses if the client forgets to take the medication; the missed dose should be skipped and the regular dosing schedule maintained.
2. A client has been prescribed vasopressin for the treatment of diabetes insipidus. What is the expected pharmacologic action of this medication?
- A. To stimulate the pancreas to secrete insulin
- B. To slow the absorption of glucose in the intestine
- C. To increase reabsorption of water in the renal tubules
- D. To increase blood pressure
Correct answer: C
Rationale: The correct answer is C: To increase reabsorption of water in the renal tubules. Vasopressin, also known as antidiuretic hormone (ADH), works by increasing the reabsorption of water in the renal tubules, which helps to concentrate urine and reduce excessive urination in diabetes insipidus. Choice A is incorrect as vasopressin does not stimulate the pancreas to secrete insulin. Choice B is incorrect as vasopressin does not affect the absorption of glucose in the intestine. Choice D is incorrect as vasopressin's primary action is not to increase blood pressure, although it can have some vasoconstrictive effects.
3. A nurse is caring for a client newly prescribed doxazosin mesylate. Which of the following instructions should the nurse include in client education regarding taking the first dose of this medication?
- A. Change positions slowly and lie down if dizziness occurs
- B. There is no need to avoid normal activities
- C. Avoid dairy products while taking this medication
- D. Do not eat green leafy vegetables
Correct answer: A
Rationale: Corrected Rationale: First-dose orthostatic hypotension can occur with doxazosin. The nurse should advise the client to change positions slowly and lie down if dizziness occurs. Choice B is incorrect because it does not address the potential side effect of dizziness. Choice C and D are also incorrect as there is no specific dietary restriction related to doxazosin mesylate.
4. A nurse is caring for a client with diabetes and a new prescription for 14 units of regular insulin and 28 units of NPH insulin subcutaneously at breakfast daily. What is the total number of units of insulin that the nurse should prepare in the insulin syringe?
- A. 14 units
- B. 28 units
- C. 32 units
- D. 42 units
Correct answer: D
Rationale: The nurse should combine both orders of insulin in the same syringe. To prepare the correct dose, the nurse should withdraw the regular insulin first (14 units) and then the NPH insulin (28 units), totaling 42 units. This combination ensures the client receives the prescribed doses of both types of insulin. Choices A, B, and C are incorrect because the nurse needs to prepare and administer both types of insulin as prescribed, resulting in a total of 42 units in the syringe.
5. A client with an artificial heart valve is prescribed warfarin therapy. Which of the following laboratory values should the nurse monitor to assess the therapeutic effect of warfarin?
- A. Hemoglobin (Hgb)
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.
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